Spondylolisthesis is the forward slippage of lumbar vertebrae.

Lateral and superior views of a lumbar vertebra.

Anteroposterior radiograph of the lumbar spine during lateral bending.

Posterior view of the ligaments of the lumbar spine and pelvis.

Superior view of a typical 2nd lumbar vertebra.

Posterior view of the inferior end of dural sac with posterior parts of the lumbar and sacral vertebrae removed.

Anterior view showing the ligaments of the lumbar spine and pelvis, including the head of femur (joint capsule removed).

Posterior view of the lumbar vertebrae, showing mammillary, accessory, transverse, superior articular, and inferior articular processes.

Superior (left) and lateral (right) views of features and movements of cervical (top), thoracic (middle), and lumbar (bottom) vertebrae.

Transverse MRI of lumbar spine (IV, intervertebral disc; N, spinal nerve; CE, cauda equina; FJ, zygapophyseal joint; L, lamina; E, epidural fat; Sp, spinous process. )

Anterior view of the lumbar vertebrae.

Profile of female child exhibiting the musculoskeletal defect of lordosis.

Vertebra, lumbar